Page 71 - MS Magazine 2025

Time Dilation and Einstein’s

THEORY OF RELATIVITY EXPLAINED SIMPLY

Albert Einstein’s Theory of Relativity changed how we think about space, time, and gravity. One of the most
fascinating ideas from this theory is time dilation — the concept that time doesn’t pass the same for everyone.
What is Time Dilation?
Time dilation means time can run at different speeds for different people, depending on how fast
they’re moving or how strong gravity is around them. Imagine two twins: one stays on Earth, and the
other travels in a spaceship close to the speed of light. When the travelling twin returns, they will be
younger than the one who stayed. That’s time dilation!
Why Does Time Dilation Happen?
Einstein’s theory has two parts: Special Relativity and General Relativity.
• Special Relativity (1905): This states that the speed of light is always the same, no matter how fast
you are moving. When you move faster, time slows down for you. That’s why the twin on the
spaceship ages more slowly.
• General Relativity (1915): This explains how gravity affects time. The stronger the gravity, the slower
time moves. For example, near a black hole, time would pass much more slowly than on Earth.
Everyday Examples
• GPS Satellites: They orbit Earth at high speeds and are farther from gravity. Their clocks tick
differently, so scientists adjust for this using both parts of relativity.
• Particle Accelerators: Fast-moving particles live longer because time slows down for them.

Why It Matters?
Time dilation shows us that time isn’t fixed — it depends on speed and gravity. While we don’t notice
these effects daily, they are real and have been proven by science!

By: Aarush Sharma,
XII B, 6762

TIME TRAVEL…… STILL A QUESTION MARK?

Imagine waking up one day and stepping into a machine that could take you back in time — to see the
pyramids being built or meet Albert Einstein. Or perhaps you would want to jump a thousand years into the
future to see how far humanity has come. Time travel has fascinated scientists, writers, and dreamers for
ages. But is it just a fantasy, or could science one day make it real?

Surprisingly, time travel is not just science fiction. Albert Einstein’s Theory of Relativity shows that time is not
fixed. It can actually change depending on speed and gravity. For example, astronauts in space age a little
slower than people on Earth. This is called time dilation, and it proves that time does not always tick the
same everywhere. Some scientists believe wormholes — tunnels through space-time — could allow us to
travel through time. But these wormholes are purely theoretical and could collapse instantly. Even if we
could keep them stable, controlling them would require technology and energy far beyond what we have
now. Travelling to the past raises tricky questions. For instance, what if you went back and stopped your
grandparents from meeting — would you still exist? That is the famous “grandfather paradox.” Some
believe time travel could lead to alternate universes, where each change creates a new reality. So, is time
travel possible? We do not know yet. But exploring the idea pushes science and imagination to exciting
new places. After all, what is fantasy today might be reality tomorrow.

By: Adarsh Kumar Keshri,
XI A, 7745

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Page No. 68 The Mapsian 2025